Automobile jack



Aug. 15, 1939 J. M. DE NAULT AUTOMOBILE JACK Filed Aug. ll, 1958 2 Sheets-Sheet 1 1938 2 Sheets-Sheet 2 J. M. PE NAULT AUTOMOBILE JACK Filed Aug. 11,

Aug. 15, 1939 Patented Aug. 15, 1939 TENT OFFICE AUTOMOBILE JACK Joseph M. De Nault, New York, N. Y. Application August 11, 1938, Serial No. 224,283 1 Claim. (o1. 254-86) This invention relates to automobile jacks. It is particularly directed to a jack which is permanently mounted on the automobile, and which may be swung out of the way when not in use,

5 and held in such position until the jack is to be used.

A further object of this invention is to provide a jack of the character described carried by the automobile, and adjustable to various positions with respect to the longitudinal center of the automobile, whereby the automobile may be lifted at the middle or on the left side or on the right side.

A further object of this invention is to provide a rugged, durable and compact automobile jack of the character described, which shall be relatively inexpensive to manufacture, easy to manipulate, and which shall yet be practical and efilcient to a high degree in use.

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the fea tures of construction, combinations of elements,

and arrangement of parts which will be exemplified in the construction hereinafter described,

andof which the scope of application will be indicated in the following claim.

\ In the accompanying drawings, in which is shown one of the various possible illustrative embodiments of this invention,

Figure 1 is a front, elevational view of an automobile provided with a jack embodying the invention;

Figure 2 is a front, elevational view, similar to Figure 1, but illustrating a modified construction;

Figure 3 is a cross-sectional view taken on line 3-3 of Figure 1; v

Figure 4 is a cross-sectional view taken on line 4-5 of Figure 2, and showing, in dotted lines, a

jack-and the crankfor the jack in the position to which the same are swung and retained when the jack is not in use; and

Figure 5 is a perspective view of the bar shown in Figures 2 and 4 which adjustably supports the Referring now in detail to the drawings, and particularly to Figures 1 and 3, It] designates an automobile having a front axle I I. The axle I I is provided with av plurality of spaced shallow grooves I2 on the underside thereof. Mounted on thefront axle II and longitudinally slidable thereon is a bracket I3.

Hinged to the bracket I3, as at I4, is an automobile jack I5 of any suitable construction,

adapted to hang vertically when the jack is swung downwardly. The jack I 5 may be of any suitable construction and may be raised or lowered by a crank I 8 connected thereto by a hinge connection I8. The bracket I3 may be slidably moved to bring the jack I5 below any one of the grooves I 2. There are preferably three grooves, one located at the longitudinal middle of the automobile, and one on each side thereof. With this construction, the automobile may be raised either at the middle or at the left side or at the right side.

Means is provided to support the jack in upwardly swung position out of the way, when the jack is not in use. To this end, there is hinged to the frame 20, as at 2|, a hook 22. The hinge is preferably located forwardly of the front axle I I, and in alignment with the central groove I2. The lower end of the hook 22 is connected by a chain or other flexible member 23 to the chassis of the automobile, as at 24.

It will now be understood that the jack I5 may be swung upwardly about hinge I4, and engaged with the hook 22, to hold the jack out of the way when the latter is not in use. When the jack is swung upwardly, the crank I8 will pivot about the hinge connection I9, so as to be carried beneath the chassis of the automobile, as illustrated in Figure 4 of the drawings.

It will now be understood that the jack I5 must be moved to the middle of the axle I I before it is swung upwardly for engagement with the hook 22. When it is desired to use the jack, the chain '23 is pulled to disengage the hook from the jack, which may then swing downwardlyto operative position.

When it is desired to swing the jack to inoperative position, the crank I8 is first turned sufficiently to lift the jack oifthe ground so as to provide sufficient clearance for this purpose.

As shown in Figure 3 the hinge connection I4 between the jack I5 and the bracket I3 is preferably located at the front of the bracket, whereby to facilitate forward swinging movement of the jack.

In Figures 2 and 4, the jack I5, instead of being slidably supported on the front axle I I, is slidably carried by a bar 30 fixed to said front axle and disposed therebelow and parallel thereto. The bar 30 is provided with grooves I211, similar I to the grooves I2 shown in Figure 1.

Slidably carried by the bar 30 is the bracket I 3a to which the jack I5 is hinged,

It will thus be seen that there is provided a device in which the several objects of this invention a plurality of spaced grooves at the underside theref, a bracket slidably mounted on said axle, and movable longitudinally thereof to positions in alignment with said grooves, an automobile jack hinged to said bracket about a horizontal axis, a crank for raising or lowering said jack having a hinged connection to said jack, a hook hinged to said automobile and adapted to engage said jack when the latter is swung upwardly away from the ground, and a chain interconnecting 10 said hook with the chassis of the automobile.

JOSEPH M. DE NAULT. 

